The Tennessee Republican said in a conference call with reporters Wednesday morning that the Cuban government hasn’t yet lived up to its end of the bargain — which includes releasing 53 political prisoners. But he added, he’s keeping an open mind.

“Well, obviously the policy we’ve had in place in Cuba since 1962 has not yielded a result that we hoped it would yield. I mean, I think that’s pretty apparent.”

Corker said the hearings will take place sometime in the next four to six weeks.